By Bell S. B. M.   Woodsford P. A.   in The Cartographic Journal

ISSN:1743-2774|14|2|128-134

Maney Publishing‎(1977)‎

Access to resources Favorite 2.7979183

By Bell S.B.M.   Cullerne J.P.   Diaz B.M.   in Foundations of Physics

ISSN:0015-9018|30|1|35-57

Springer Publishing Company ‎(2000)‎

Access to resources Favorite 2.3315988